WAAS Sat status change

INTELSAT(PanAmSat), Galaxy-15, W133 deg, PRN -135 (48)
PRN-135 will be put back into "Test Mode" for 7 days from 4/16 to 4/23 to test retrofitting of ranging loop code carrier coherency changes developed during PRN-138 testing. Non-aviation users with test mode with corrections capability should not be impacted. Aviation users will automatically revert to using PRN-122. Since PRN-122 is fairly low elevation in NE CONUS, aviation users will have degraded availability in the NE for those days. For real, legal, information, see the official NOTAMS.
PRN-135 was taken out of "Test Mode" and placed in normal mode at 08:00 UTC on 11/9.
PRN-135 will operate for about the first 6 to 9 months as a data link of correction and integrity information only. That is, the UDRE will be set to "not monitored". This will result in it being displayed with a "hollow bar" on some receiver displays.
The ranging control loop for PRN-135 will be running, but the WAAS ground system will not provide UDREs smaller than Not Monitored until the FAA's verification of the integrity analyses for the ranging function have been completed as part of the PRN-138 testing. (Data link only operation allowed the PRN-135 deployment to be accelerated to compensate for the loss of PRN-122 in the North East)